The entire Harry Potter collection is 96 hours long...anyone have a rough idea of how this translates into gigabytes? Or, anyone ripped the Books on CD know what an individual book takes up? Someone said for music it was roughly 1 MB = 1 min. I imagine, though, that this would be not stay the same for an audio book. Just curious, as I've been pondering getting an iPod, and would like to have these and LotR (books and BBC Adaptation) available - not necessarily all on there at the same time, perhaps simply 1 book, or 1/2 a book at a time.